"ling_(cg sky)": Described as using "miharu" as an alias, but not aliased to "miharu"
"miharu_(artist)": not sure if this is the same as "ling_(cg_sky)", they look somewhat similar to me, though.
"miharu": character tag described as an artist. This looks like the tag that "miharu_(artist)" mentioned having replaced.
Didn't change anything since I don't know enough about Baby Princess.